
OPTICS AND OPTICAL INSTRUMENTS - ENVIRONMENTAL TEST METHODS - PART 5: COMBINED COLD, LOW AIR PRESSURE
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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OPTICS AND OPTICAL INSTRUMENTS - ENVIRONMENTAL TEST METHODS - PART 5: COMBINED COLD, LOW AIR PRESSURE
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频